Course
The marathon and half run down the Poudre Canyon in the Rocky Mountains, following the Cache la Poudre River into Fort Collins, and the full is billed as Colorado's fastest downhill course. The 10K is a separate out-and-back through the natural areas of Fort Collins.
Key dates
- ✓Entries openedWed 1 Jul 2026
- ★Race daySun 2 May 2027
About
Experience the thrill of running one of Colorado's fastest downhill races! The Poudre Canyon in the Rocky Mountains is a breathtaking landscape that sets the stage for the Colorado Marathon's full, half, 10k, and 5k courses. Runners are treated to stunning views of the canyon walls and verdant tree-lined slopes rising around them as they wind their way along the banks of the shimmering Cache La Poudre River.
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Longmont Half & 5k (LM Half)
Longmont's only half marathon
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Collegiate Peaks Trail Run
A premier Rocky Mountain trail run with stunning alpine vistas
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.
